7879426 has 4 divisors (see below), whose sum is σ = 11819142. Its totient is φ = 3939712.

The previous prime is 7879423. The next prime is 7879427. The reversal of 7879426 is 6249787.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6249787 = 1231 ⋅5077.

It can be written as a sum of positive squares in only one way, i.e., 7756225 + 123201 = 2785^2 + 351^2 .

It is not an unprimeable number, because it can be changed into a prime (7879423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1969855 + ... + 1969858.

Almost surely, 2^7879426 is an apocalyptic number.

7879426 is a deficient number, since it is larger than the sum of its proper divisors (3939716).

7879426 is a wasteful number, since it uses less digits than its factorization.

7879426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939715.

The product of its digits is 169344, while the sum is 43.

The square root of 7879426 is about 2807.0315281450. The cubic root of 7879426 is about 198.9901260220.

The spelling of 7879426 in words is "seven million, eight hundred seventy-nine thousand, four hundred twenty-six".